Joseph l



@geiten tat-rs gatrnt @Hire Leners Patent No. 81.630, dated septembe-1,1868.

IMPROVEMENT IN .COMBINATION-PADIOGKS.

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To ALL WHOM 1T MAY eoNoERN; v

. Be it'known that I, JOSEPH L. HALL, of Cincinnati, in the county ofHamilton, andState of Ohio, have invented a new and useful Improvementin Gombination-Iadlocks, of which the following is a full and cleardescription, reference being had to the accompanying drawings, makingpart of this specification.

My invention relates to combination no-key-hle padlocks; and consists ina novel construction andcombination of a. series of rotating tumblersand rocking lock-bolt, arranged to be operated by the hasp ofthe lock.In the drawingsi Figure I is a perspective view, with one ofthe platesofthe casing removed;

Figure 2 is a plan ofthe same, showing the lock opened. i

Figure 3 is a plan' view, with a part of one of the plates of the casingremoved, showing the lock closed, and the index and dial-plates.

Figure 4 is a view of a longitudinal section, taken through thehub apdthe axis of the rocking lockbolt, and t Figure 5 is a perspective viewof a part detached.

I construct my combination no-key-hole padlock in the usual form, andprovide the front-plate of the casing, A, with the cylindrical hub,B,`projeeting inwardly, as shown in fig. 4.

In this hub, B, I insert a spindle, a, having a conical head, p, `whichI countersink in the casing-A, and to it attach, on the outside. of thecasing, an index-plate, b, by a thumb-screw, c, which passesA throughthe axis of the index-plate b, and taps into the headp of the spindle a,which is Hush with theV outer face of the lock, as clearly shown in fig.4.

Around the index-plate b, I make a' dial on" the face of the casing A,so that the revolutions of the indexplate may be counted. v

l On the inner end ofthe spindle a, which projects far enough beyond theend of the hub B for that purpose, I firmly-secure the circularguard-tumbler C, and under it, andon the hub B, so as to move freelyabout it, I place a. series of similar-shaped tumblcrs, C, with a seriesof washers, c c', interposed between them, and rigidly attached to thehub B. V

Each of these tumblcrs I provide with a pin, d, so that when theguard-tumbler Gis revolved by the spindle a, its pin, d, will come incontact or engage with the pin in the tumbler next under it, and so onthrough the whole series, as shown in iig. 4.

These tumblers I also provide with a deep recess, termed a gating, e, ofexactly the same form and shape as shown in figs. I and 2, so that, whenin line, they may admit the dogf, for the purpose'hereinafter explained.

The guard-tumbler C, I make a little larger in size than the others, andprovide its edge with any number of shallower recesses, e', called falsegatings, as `shown in figs. I and 2.

l Also, within the casing, and between the tumblers and its upperedge-plate, I pivot a rocking lock-bolt, D,

shaped as shown in figs. 1, 2, and 3, and having one arm, D', providedwith a dog, f, made of the requisite size and form, and turned in theproper direction to easily enter the gatings in the tumblers, when thesame ,are

in line.

The opposite cnd of thc rocking lock-bolt D, I provide with a mouth, n",having a short upper jaw, n, curved on its under -outcr end, and a longunder jaw, n', projecting beyond it, as clearly shown in gs. 2 and 3,and n1ade`oi` the requisite length to permit the jaws 'n n to. comeldirectly under 'the hole c,through which the shank z' of the haspG"enters, as shown in the same figures.

The fore end ofthe hasp G, I provide with a shank, 1.', of. the propersize to enter easily the hole c in the casing, and also with a. collar,l, to limit the depth to which it may enter.`

The shank t', I provide with a. recess, i', on its inner face., from itslower side, with the lip m, which also forms theend of the shank, andextends a little inwardly, and has its upper outer endrounded, as shownin iig. '2.

The opposite end of the hasp G, which is hinged to the casing, I providewith an eccentric, F, shaped as clearly shown in fig. 5, by pivoting itin the eye of the hasp and on the pin of its hinge, as shown in iig. 2.

This eccentric F maybe rigidly attached to the eye of the hasp, or forma part of it, as it is arranged to turn with it. On its front face it isprovided with a lip, g, which forms part of the recess g', as shown infigs.

2 and 5. I

Within the casing, and under the eye of the hasp, I pivot a trip, E,shaped as shown in iig. 2, with a short arm, t, to enter into the recessg of the eccentric, I", when the hasp is down, and in thus entering, torelieve the hearing of its long armen the larm D of the rockinglock-bolt D, and when the hasp is raised up, so that the pressure of theprojecting part of the eccentric on the short arm It may cause the longarm of the trip E to press upon the arm D of the rocking lock-bolt D,and hold its dog, f, in the gatings, e, of the tumblers, as shown in hg,2. A Y l `It is obvious this same result may be accomplished in variousways by springs, one of which isshown in g. 3, by the spring o, Iprefer, however, to use an eccentric, F,and trip, E, as described.

Under the index-plate b, `I attach a pin, r, which tits into acorresponding recess in the head ofthe spindle a, and thus connects theindex-plate with the spindle, sothat they must turn together when thethumb-screw c/ is in its place, as shown in iig. 4,

The index-plate l1, I provide with divisions, near its outer edge, asshown in tig. 3, and number them as on a dial. These divisions, as theypass any fixed point on the face of the casing, will. enable me to countthe revolutions, or parts ofrevolutions, made in turning the index-plateeither way, to set the tumblcrs in order, that their gatings may be inline, to allow the entrance of the dog f of the rocking lock-bolt D.

This done, I find out the combination of movements necessary to be madeby noting the movements of theindex-plate, in order to open the lock.

By making other recesses in the head of the spindle a for the pin 7', onthe under face of the dial-plate to fit into, it is obvious that therevolutions of the index-plate would have to be dierent iu order to openthe lock, and thus I would have a new combination. l

In this way, I can have one or more combinations for opening the samelock, no one of which can be used Without a knowledge of it, and so thata knowledge of one will he no clew to the othersn This arrangement, Ithink, would be of especial service in the express and mail-service oi'the eouritry;

In operatingr my lock, I rst, before it is put together, take a registerof itseombinations for reference. supposing the lock to be open, asshown in fig. 2, then the gateways inthe tumblers are in line, and tbedog f of the rocking lock-bolt is in them, and is held there by theeccentric, F, pressing upon the trip E, which bears upon the arm D', asshown in the same figure.

To close the lock, I simply press down the fore end of the hasp G. Theshank z' enters the hole lc, in the casing, the lip m slips over the jawn, and enters the mouth, n, of the rocking lock-bolt D, and 'locks withit, and, at the same time, the end of the shank z' bears against the jawn, pressing it down till the shoulder Z of the shankz strikes againstthe casing about the hole c, thus limiting the movement of the hasp, andconscquently that of the rocking look-bolt D, against which its shank,z', presses.

As the hasp, Gr is thus pressed down, the eccentric F is turned with it,and the arm t of the trip E enters the recess g" of the eccentric, andrelieves the other end of the trip frompressing or bearing upon thearm Dof the rocking loch-boltD, and, at the same time, the rocking lock-boltDis tilted suiciently to remove its dog,f, from the gateways c of thetumblors.

When this is done, it is only necessary to turn the thumb-screw c andbreak up the combination, when the lock is fast.

'lo open the lock, you set the tumblers by turning the thumb-screw andindexplate 6, which are connected with the spindle a, as shown by yourregister, so that their gateways, e, will be in line and immediatelyopposite the end of the dogf, then pull upon the hasp G, when therocking lock-bolt D will turn on its pivot, releasing the hasp at oneend, and entering its dog j', in the gateways of the tumblcrs, at theother, in which it will be held by the .trip E until removed byfastening the lock again.

The-objoot of the false gatings ef is to mislead and deceive partiesattempting to operate the lock without a knowledge of the combination.

Having thus described my invention, what I claim is l 1. The combinationof a series of rotating tumblers with a rocking lock-bolt, operated bythe hasp only, and enclosed in a case having no key-hole, substantiallyas described.

2. The combination of a series oi' rotating tumblers, C', the rockinglock-bolt D, and the tripping-lever E, or its equivalent, allconstructed and arranged -to operate substantially as described.

JOSEPH L. HALL.

Witnesses:

C. L. FISHER, Willman R. McCoMAs.

